Thread cassette for an embroidery machine



FIG. 1 is a front view of a thread cassette for an embroidery machine;

FIG. 2 is a rear view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines define the bounds of the claimed design, but do not form part of the claim design. 

The ornamental design for a thread cassette for an embroidery machine, as shown and described. 